Testing for the Law of One Price and Identifying Price-Leading Markets: An Application to Corn Markets in Benin

A data-determined method is proposed to test for the law of one price as a long-run equilibrium condition and to identify which markets in a network of spatially dispersed commodity markets quote the reference price. The method consists of supplementing Johansen's FIML cointegration procedure with a permanent-transitory decomposition and rules of inference in linear time-series models with unit roots. As an example, we apply our method to prices of six corn markets in Benin. We find that the law of one price holds in the long-run. It appears that two rural markets quote the reference price: their prices adjust fastest towards the permanent change induced by the common stochastic trend.     

Osteological evidence for the draught exploitation of cattle: first applications of a new methodology

Although the aetiology of bone pathologies in cattle is poorly documented, various deformations in the skeleton have been attributed to draught exploitation in the archaeozoological literature. This paper summarizes the results of an osteological study that was undertaken on the feet of modern draught oxen. This led to the definition of a series of draught‐related anomalies. In an attempt to describe the pathologies in a more consistent and quantitative way, a scoring scale for each individual bone pathology was established. The developed method is applied to cattle remains from four Roman and one late medieval site. The distribution of the observed pathological indices (PIs) on the first phalanges is interpreted in terms of the age structure of the cattle populations, and the possible modes of cattle exploitation and meat consumption in various settlement types. Copyright © 2000 John Wiley & Sons, Ltd.     

Negotiating spatial identities: mobile perspectives on street life in uganda

Previous geographical research with street children has principally focused on their micro-geographies in the city. This paper draws on nomadic and episodic processes of homeless mobility, to explore street children's geographies from a wider social, spatial and temporal perspective. By examining street life in Kampala, Uganda as a continued negotiation of public/private and street/non-street locations, the fluid nature of street children's identity is illustrated. Over time, movement between spaces, such as divergent city niches, institutions, homes and other towns, is often subject to power relations operating in street/non-street spaces with each requiring conformity to a different set of values and behaviours. The paper demonstrates how this results in children's street identity changing as they move through the street life path.     

Disproportionality and bias in US Presidential Elections: How geography helped Bush defeat Gore but couldn't help Kerry beat Bush

The 2000 and 2004 US Presidential elections were closely fought contests, with in the first case victory in the Electoral College being denied to the candidate with the largest share of the popular vote. Disproportionality in the translation of votes into seats (in this case, from popular votes to votes in the Electoral College) is common to contests using a winner-takes-all electoral system. So is bias, whereby that disproportionality does not apply equally to each candidate. Analysis of the bias at those two elections shows that Bush was favoured at the first but not at the second. Identification of the bias components shows that Bush was advantaged by variations in the number of popular votes per Electoral College voter across the states, and also by variation in turnout. In 2000, his popular votes were also more efficiently distributed than Gore's; in 2004 they were less efficiently distributed than Kerry's, largely because of increased turnout – producing larger numbers of surplus votes – in states that were already safe for Bush.     

The origin of overpressure in 'old' sedimentary basins: an example from the Cooper Basin, Australia

Overpressure in ‘old’ sedimentary basins that have not undergone rapid, recent sedimentation cannot be easily explained using traditional burial‐driven mechanisms. The last significant burial event in the Cooper Basin, Australia, was the Late Cretaceous deposition of the Winton Formation (98.5–90 Ma). Maximum temperature in the basin was attained during the Late Cretaceous, with cooling beginning prior to 75 Ma. Hence, overpressure related to rapid burial or palaeomaximum temperatures (e.g. hydrocarbon generation) must have developed prior to 75 Ma. Retaining overpressure for 75 Ma in ‘old’ basins such as the Cooper Basin requires extremely low seal permeabilities. An alternative explanation is that overpressure in the Cooper Basin has been generated because of an increase in mean stress associated with an increase in horizontal compressive stress since Late Cretaceous times. Structural observations and contemporary stress data indicate that there has been an increase in mean stress of approximately 50 MPa between Late Cretaceous times to that presently measured at 3780 m. The largest measured overpressure in the Cooper Basin is 14.5 MPa at 3780 m in the Kirby 1 well. Hence, disequilibrium compaction driven by increasing mean stress can explain the magnitude of the observed overpressure in the Cooper Basin. Increases in mean stress (tectonic loading) may be a feasible mechanism for overpressure generation in other ‘old’ basins that have undergone a recent increase in horizontal stress (e.g. Anadarko Basin).     

Building Localized Interactions Between Universities and Cities Through University Spatial Development

Universities are important players in the global development of knowledge economy, alongside being significant contributors to the economic development of their host cities. They are both significant knowledge enterprises and the suppliers of the human and intellectual capital on which the knowledge-based economy depends. What seems under-explored is how deliberative partnerships between universities and city authorities can develop around projects of mutual benefit, especially based on campus development. In this paper, with the help of five case studies (QUT, MIT, Harvard, Twente and Newcastle universities), we investigate how the spatial development of universities can be one of the main meeting points between the city and university and how it can be used for stimulating economic development and managing growth. These cases show that university—city collaborative initiatives focused on the university properties represent a desire to produce creative and competitive new urban spaces, which reinforce the position of the university and the city in global economy. They also show that these developments need to be jointly managed to avoid undesirable impacts on either side.     

An overview of bitumen trade in the Near East from the Neolithic (c.8000 BC) to the early Islamic period

The aim of the paper is to summarise the present state of knowledge concerning bitumen trade in the Near East from the Palaeolithic (70,000 BP) to the Early Islamic period. During the Palaeolithic and Early Neolithic period, bitumen utilisation was mostly concentrated in settlements close to oil seeps. From the Ubaid 3 period, bitumen from the Mosul area became more important and was traded as far as the southern Persian Gulf. The Uruk period is a turning point for Mesopotamian history as settlements evolved into city‐states. These cities had a great need for raw materials, and this marks the beginning of large‐scale exploitation of Hit bitumen. This bitumen was traded at settlements along the Euphrates, where a large trade network was established. Hit bitumen entered the Persian Gulf at the turn of the second millennium (Dilmun period). Bitumen from Iraq (Mosul and Hit) became predominantly used in most settlements along the southern coast of the Gulf. During this period Iranian bitumen was also exported and this supply tended to increase, especially during the Partho‐Sasanian period. Dead Sea bitumen had its own exchange network, which was concentrated across present‐day Israel and Egypt where it was extensively used for mummification.     

Payments for Ecosystem Services in Nicaragua: Do Market‐based Approaches Work?

The concept of Payments for Ecosystem Services (PES) is gaining increasing attention among scholars as well as conservation and development practitioners. The premises of this innovative conservation approach are appealing: private land users, usually poorly motivated to protect nature on their land, will do so if they receive payments from environmental service buyers which cover part of the land users’ opportunity costs of developing the land. However, this article warns against an over‐enthusiastic adoption of a one‐sided market‐based PES approach. Based on a field study of the Regional Integrated Silvopastoral Approaches to Ecosystem Management Project (RISEMP), one of the main PES pilot projects in Nicaragua, it suggests that a mixture of economic and non‐economic factors motivated farmers to adopt the envisaged silvopastoral practices and that the actual role of PES is mistakenly understood as a simple matter of financial incentives. The authors argue that PES approaches should be understood as a part of a broader process of local institutional transformation rather than as a market‐based alternative for allegedly ineffective government and/or community governance.